Evaluating California's SB 375 Implementation So Far

Julie Pierce, city of Clayton councilmember, chair of the Contra Costa Transportation Authority, and president of the Association of Bay Area Governments, evaluates the effects of SB 375, California's key land use law to address climate change .

2 minute read

March 7, 2015, 9:00 AM PST

By rbregoff


The opening of the editorial:

"I am a city council member, but I am also a regionalist. These are not mutually exclusive titles — each needs the other. Regional governments are built with and depend on the expertise of local officials. Because local government is the level of government closest to the people, we hear firsthand when potholes go unfilled or the garbage is not picked up.

But our residents live in regions. It’s not unusual for someone to make their home in one city but work in a second city, shop in a third and go to a fourth for recreation. Our residents expect their local governments to work together regionally.

Enter SB 375 (Steinberg, Chapter 728, Statutes of 2008), a law that requires a Regional Transportation Plan (RTP) to go beyond existing requirements and meet greenhouse gas emissions reduction targets. Implementing this policy at the regional level made sense to the Legislature because travel patterns could not be addressed on a city-by-city approach; it requires regional cooperation.

SB 375 also recognizes local authority and leverages the symbiotic relationship between local and regional planning. Local plans provide the baseline for all regional plans and investment decisions. Yet at some point, a transportation investment crosses local boundaries: A new bus line is funded, a road is built or a bike lane is created, and the land-use market responds. New homes are built, businesses spring up, and transit and freight routes are altered. Land-use investment drives transportation systems. And transportation investment drives land-use markets."

The article goes on to evaluate the effects of SB 375 according to a number of key considerations. 

Wednesday, March 4, 2015 in Western City

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 23, 2026 - Zachary Whalen

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18, 2026 - Inside Climate News

People walk through Philadelphia International Airport. There is a convince store on the right.

Philadelphia to invest $2 billion into upgrading city airports as PHL places last in customer satisfaction

Modernizations to Philadelphia's airports will include baggage system upgrades and a new automated parking garage guidance system.

September 23 - WHYY

A downtown area in Los Angeles, with a Taco Bell visible. People wait to cross the street towards a tall apartment building.

The LA housing policies making developers turn away from the city

Despite LA’s housing shortage, developers say the city’s "mansion-tax" and pandemic-era policies make it an unappealing place to build housing.

September 23 - Los Angeles Times

People cross a wide street in San Francisco, with tall buildings in the background.

New density bill would require 7 California cities to establish regional transit hubs

The bill would also require major cities in California to permit high-rise residential buildings.

September 23 - Smart Cities Dive